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https://www.readbyqxmd.com/read/28324255/can-red-deer-antlers-be-used-as-an-indicator-of-environmental-and-edible-tissues-trace-element-contamination
#1
Aleksandra Giżejewska, Józef Szkoda, Agnieszka Nawrocka, Jan Żmudzki, Zygmunt Giżejewski
Venison is an attractive product for consumers concerned with healthy lifestyle; however, it can contain high levels of toxic elements, and therefore, it is a possible source of hazardous contaminants in human diet. Antlers are suitable bioindicators of environmental metal contamination, and herein, we assessed the ability of trace element levels in antlers to indicate levels in edible soft tissues. We determined the concentrations of lead (Pb), cadmium (Cd), mercury (Hg), arsenic (As), copper (Cu), zinc (Zn), and iron (Fe) in the liver, kidney, muscle, and antlers of 14 free-ranging red deer (Cervus elaphus) from northeastern Poland using atomic absorption spectrometry...
March 21, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28323471/estimating-the-proportion-of-childhood-cancer-cases-and-costs-attributable-to-the-environment-in-california
#2
Lauren Nelson, Jhaqueline Valle, Galatea King, Paul K Mills, Maxwell J Richardson, Eric M Roberts, Daniel Smith, Paul English
OBJECTIVES: To estimate the proportion of cases and costs of the most common cancers among children aged 0 to 14 years (leukemia, lymphoma, and brain or central nervous system tumors) that were attributable to preventable environmental pollution in California in 2013. METHODS: We conducted a literature review to identify preventable environmental hazards associated with childhood cancer. We combined risk estimates with California-specific exposure prevalence estimates to calculate hazard-specific environmental attributable fractions (EAFs)...
March 21, 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/28319713/observational-evidence-on-the-effects-of-mega-fires-on-the-frequency-of-hydrogeomorphic-hazards-the-case-of-the-peloponnese-fires-of-2007-in-greece
#3
M Diakakis, E I Nikolopoulos, S Mavroulis, E Vassilakis, E Korakaki
Even though rare, mega-fires raging during very dry and windy conditions, record catastrophic impacts on infrastructure, the environment and human life, as well as extremely high suppression and rehabilitation costs. Apart from the direct consequences, mega-fires induce long-term effects in the geomorphological and hydrological processes, influencing environmental factors that in turn can affect the occurrence of other natural hazards, such as floods and mass movement phenomena. This work focuses on the forest fire of 2007 in Peloponnese, Greece that to date corresponds to the largest fire in the country's record that burnt 1773km(2), causing 78 fatalities and very significant damages in property and infrastructure...
March 16, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28318825/riparian-erosion-vulnerability-model-based-on-environmental-features
#4
Alejandra Botero-Acosta, Maria L Chu, Jorge A Guzman, Patrick J Starks, Daniel N Moriasi
Riparian erosion is one of the major causes of sediment and contaminant load to streams, degradation of riparian wildlife habitats, and land loss hazards. Land and soil management practices are implemented as conservation and restoration measures to mitigate the environmental problems brought about by riparian erosion. This, however, requires the identification of vulnerable areas to soil erosion. Because of the complex interactions between the different mechanisms that govern soil erosion and the inherent uncertainties involved in quantifying these processes, assessing erosion vulnerability at the watershed scale is challenging...
March 16, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28318785/biodegradation-of-polyester-polyurethane-by-aspergillus-tubingensis
#5
Sehroon Khan, Sadia Nadir, Zia Ullah Shah, Aamer Ali Shah, Samantha C Karunarathna, Jianchu Xu, Afsar Khan, Shahzad Munir, Fariha Hasan
The xenobiotic nature and lack of degradability of polymeric materials has resulted in vast levels of environmental pollution and numerous health hazards. Different strategies have been developed and still more research is being in progress to reduce the impact of these polymeric materials. This work aimed to isolate and characterize polyester polyurethane (PU) degrading fungi from the soil of a general city waste disposal site in Islamabad, Pakistan. A novel PU degrading fungus was isolated from soil and identified as Aspergillus tubingensis on the basis of colony morphology, macro- and micro-morphology, molecular and phylogenetic analyses...
March 15, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28318699/significance-of-metabolites-in-the-environmental-risk-assessment-of-pharmaceuticals-consumed-by-human
#6
Eun Jeong Han, Dong Soo Lee
The purpose of this study is to demonstrate the significance of metabolites to the ERA of human pharmaceuticals. The predicted exposure concentrations (PECs) in surface water were estimated for a total of 24 selected active pharmaceutical ingredients (APIs) and their metabolites using a life cycle based emission estimation model combined with a multimedia fate model with Monte-Carlo calculations. With the eco-toxicity data, the hazard quotients (HQs) of the metabolites were compared with those of individual parents alone...
March 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28318430/factors-contributing-to-intercity-commercial-bus-drivers-crash-involvement-risk
#7
Mohammad Mehdi Besharati, Ali Tavakoli Kashani
The aim of this study was to examine the influence of demographic, environmental and occupational factors as well as behavioural characteristics of intercity bus drivers, on their crash involvement risk. A total number of 107 intercity bus drivers from Tehran, Iran were participated in the study. Logistic regression model suggested that smokers, those who drive during night to morning, less experienced drivers as well as those who operate older buses are more likely to be involved in crashes. In addition, one unit increase in the weekly driving hours might significantly increase the drivers' crash involvement risk...
March 20, 2017: Archives of Environmental & Occupational Health
https://www.readbyqxmd.com/read/28316900/influence-of-environmental-factors-on-biodegradation-of-quinalphos-by-bacillus-thuringiensis
#8
Venkata Subba Reddy Gangireddygari, Praveen Kumar Kalva, Khayalethu Ntushelo, Manjunatha Bangeppagari, Arnaud Djami Tchatchou, Rajasekhar Reddy Bontha
BACKGROUND: The extensive and intensive uses of organophosphorus insecticide-quinalphos in agriculture, pose a health hazard to animals, humans, and environment because of its persistence in the soil and crops. However, there is no much information available on the biodegradation of quinalphos by the soil micro-organisms, which play a significant role in detoxifying pesticides in the environment; so research is initiated in biodegradation of quinalphos. RESULTS: A soil bacterium strain, capable of utilizing quinalphos as its sole source of carbon and energy, was isolated from soil via the enrichment method on minimal salts medium (MSM)...
2017: Environmental Sciences Europe
https://www.readbyqxmd.com/read/28304330/a-context-aware-s-health-service-system-for-drivers
#9
Jingkun Chang, Wenbin Yao, Xiaoyong Li
As a stressful and sensitive task, driving can be disturbed by various factors from the health condition of the driver to the environmental variables of the vehicle. Continuous monitoring of driving hazards and providing the most appropriate business services to meet actual needs can guarantee safe driving and make great use of the existing information resources and business services. However, there is no in-depth research on the perception of a driver's health status or the provision of customized business services in case of various hazardous situations...
March 17, 2017: Sensors
https://www.readbyqxmd.com/read/28303741/weight-of-the-evidence-evaluation-of-2-4-d-potential-for-interactions-with-the-estrogen-androgen-and-thyroid-pathways-and-steroidogenesis
#10
B H Neal, J Bus, M S Marty, K Coady, A Williams, J Staveley, J C Lamb
A comprehensive weight-of-the-evidence evaluation of 2,4-dichlorophenoxyacetic acid (2,4-D) was conducted for potential interactions with the estrogen, androgen and thyroid pathways and with steroidogenesis. This assessment was based on an extensive database of high quality in vitro, in vivo ecotoxicological and in vivo mammalian toxicological studies. Epidemiological studies were also considered. Toxicokinetic data provided the basis for determining rational cutoffs above which exposures were considered irrelevant to humans based on exceeding thresholds for saturation of renal clearance (TSRC); extensive human exposure and biomonitoring data support that these boundaries far exceed human exposures and provide ample margins of exposure...
March 2, 2017: Critical Reviews in Toxicology
https://www.readbyqxmd.com/read/28298639/benzyl-butyl-phthalate-decreases-myogenic-differentiation-of-endometrial-mesenchymal-stem-stromal-cells-through-mir-137-mediated-regulation-of-pitx2
#11
Hung-Sheng Chen, Chia-Yi Hsu, Yu-Chia Chang, Hui-Yu Chuang, Cheng-Yu Long, Tsung-Hua Hsieh, Eing-Mei Tsai
Phthalate, an environmental toxin, has been considered as an endocrine-disrupting chemical. Growing evidence has demonstrated links between endocrine-disrupting chemicals, tissue development, and reproductive physiology, but the mechanisms of gene expression regulation by environmental factors that affect cell differentiation are unclear. Herein, we investigated the effects of butyl benzyl phthalate (BBP) on human endometrial mesenchymal stem/stromal cell (EN-MSC) differentiation and identified a novel signaling pathway...
March 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28296077/cadmium-and-chlorpyrifos-inhibit-cellular-immune-response-in-spleen-of-rats
#12
Pan Wang, Jin Wang, Ying-Jian Sun, Lin Yang, Yi-Jun Wu
Cadmium (Cd) and chlorpyrifos (CPF) are common pollutants coexisting in the environment, and both of them have been reported to have immunotoxicity to organisms. However, the joint effects of these two chemicals on the immune system are still unknown. In this study, we used CdCl2 and CPF to study their combined effects on immune functions in the spleen of rats. In in vivo experiments, SD rats were exposed to different doses of CdCl2 (0.7 and 6 mg kg(-1) body weight/day) and CPF (1.7 and 15 mg kg(-1) body weight/day) or their combinations for consecutive 28 days...
March 15, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/28294522/a-quantitative-screening-level-approach-to-incorporate-chemical-exposure-and-risk-safety-into-alternative-assessment-evaluations
#13
Scott M Arnold, Bill Greggs, Katy O Goyak, Bryce D Landenberger, Ann M Mason, Brett Howard, Rosemary Zaleski, Brett Howard, Rosemary T Zaleski
As the general public and retailers ask for disclosure of chemical ingredients in the marketplace, a number of hazard screening tools were developed to evaluate the so called "greenness" of individual chemical ingredients and/or formulations. The majority of these tools focus only on hazard, often using chemical lists, ignoring the other part of the risk equation: exposure. Using a hazard-only focus can result in regrettable substitutions, changing one chemical ingredient for another that turns out to be more hazardous or shifts the toxicity burden to others...
March 10, 2017: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/28290930/medical-effects-of-a-transuranic-dirty-bomb
#14
Asaf Durakovic
The modern military battlefields are characterized by the use of nonconventional weapons such as encountered in the conflicts of the Gulf War I and Gulf War II. Recent warfare in Iraq, Afghanistan, and the Balkans has introduced radioactive weapons to the modern war zone scenarios. This presents the military medicine with a new area of radioactive warfare with the potential large scale contamination of military and civilian targets with the variety of radioactive isotopes further enhanced by the clandestine use of radioactive materials in the terrorist radioactive warfare...
March 2017: Military Medicine
https://www.readbyqxmd.com/read/28289977/location-function-and-ontogeny-of-pulmonary-macrophages-during-the-steady-state
#15
REVIEW
Natalio Garbi, Bart N Lambrecht
The lung is continuously exposed to potentially hazardous environmental challenges in the form of inert material and microbes. Pulmonary macrophages are critical in maintaining a low inflammatory context in the lung to facilitate optimal gas exchange. During infection, however, they mediate the immediate response to invading microorganisms in coordination with epithelial cells and other tissue-resident immune cells including dendritic cells, innate lymphocytes and memory T cells, and pulmonary interstitial macrophages...
March 13, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28286909/pygoscelis-antarcticus-feathers-as-bioindicator-of-trace-element-risk-in-marine-environments-from-barton-peninsula-25-de-mayo-king-george-island-antarctica
#16
Soledad Perez Catán, Debora Bubach, Carla Di Fonzo, Laura Dopchiz, Maria Arribére, Martin Ansaldo
We report the contents of elements in feathers of Chinstrap penguin (Pygoscelis antarcticus), which had not been informed up to now, such as silver and bromine and others listed as hazardous by the United States Environmental Protection Agency as arsenic, cobalt, chromium, and mercury. Analyses of the element concentrations in feathers, adult and chicken, from Barton Peninsulas at 25 de Mayo (King George) Island, South Shetlands, were made by Instrumental Neutron Activation Analysis. Samarium, lanthanum a, thorium, and uranium concentrations in Chinstrap penguin feathers were below 0...
March 13, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28285860/a-discussion-about-public-health-lead-and-legionella-pneumophila-in-drinking-water-supplies-in-the-united-states
#17
Michael B Rosen, Lok R Pokhrel, Mark H Weir
Lead (Pb) in public drinking water supplies has garnered much attention since the outset of the Flint water crisis. Pb is a known hazard in multiple environmental matrices, exposure from which results in long-term deleterious health effects in humans. This discussion paper aims to provide a succinct account of environmental Pb exposures with a focus on water Pb levels (WLLs) in the United States. It is understood that there is a strong correlation between WLLs and blood Pb levels (BLLs), and the associated health effects...
March 9, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28284980/the-kingston-allergy-birth-cohort-exploring-parentally-reported-respiratory-outcomes-through-the-lens-of-the-exposome
#18
Michelle L North, Jeffrey R Brook, Elizabeth Y Lee, Vanessa Omana, Nadia M Daniel, Lisa M Steacy, Greg J Evans, Miriam L Diamond, Anne K Ellis
BACKGROUND: The Kingston Allergy Birth Cohort (KABC) is a prenatally recruited cohort initiated to study the developmental origins of allergic disease. Kingston General Hospital was chosen for recruitment because it serves a population with notable diversity in environmental exposures relevant to the emerging concept of the exposome. OBJECTIVES: To establish a profile of the KABC using the exposome framework and examine parentally reported respiratory symptoms to 2 years of age...
March 8, 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28284652/environmental-characteristics-agricultural-land-use-and-vulnerability-to-degradation-in-malopolska-province-poland
#19
Agnieszka Nowak, Christian Schneider
Environmental degradation encompasses multiple processes that are rarely combined in analyses. This study refers to three types of environmental degradation resulting from agricultural activity: soil erosion, nutrient loss, and groundwater pollution. The research was conducted in seven distinct study areas in the Malopolska Province, Poland, each characterized by different environmental properties. Calculations were made on the basis of common models, i.e., USLE (soil erosion), InVEST (nutrient loss), and DRASTIC (groundwater pollution)...
March 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28284647/identification-and-prioritization-of-areas-with-high-environmental-risk-in-mediterranean-coastal-areas-a-flexible-approach
#20
Michela Marignani, Daniele Bruschi, Davide Astiaso Garcia, Raffaella Frondoni, Emanuela Carli, Maria Silvia Pinna, Fabrizio Cumo, Franco Gugliermetti, Arne Saatkamp, Aggeliki Doxa, Emi Martín Queller, Mohamed Chaieb, Magda Bou Dagher-Kharrat, Rana El Zein, Sarah El Jeitani, Carla Khater, Sophie Mansour, Anwar Al-Shami, Ghinwa Harik, Ibrahim Alameddine, Mutasem El-Fadel, Carlo Blasi
Interdisciplinarity and transdisciplinarity are the cornerstone for the future management of coastal ecosystems with many vulnerability and hazard indexes developed for this purpose, especially in the engineering literature, but with limited studies that considered ecological implications within a risk assessment. Similarly, the concept of prioritization of sites has been widely examined in biodiversity conservation studies, but only recently as an instrument for territory management. Considering coastal plant diversity at the species and community levels, and their vulnerability to three main potential hazards threatening coastal areas (oil spills, Hazardous and Noxious Substances pollution, fragmentation of natural habitats), the objective of this paper is to define an easy-to-use approach to locate and prioritize the areas more susceptible to those stressors, in order to have a practical instrument for risk management in the ordinary and extra-ordinary management of the coastline...
March 8, 2017: Science of the Total Environment
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